Following code works for bash but now i need it for busybox ash , which apparrently does not have "=~" keyword="^Cookie: (.*)$" if [[ $line =~ $keyword ]] then bla bla fi Is there a suitable re...

I've been reading the man pages for apk add, but I don't fully understand how to use the --force-broken-world flag. I was trying to install Python 2.7.6 into an Alpine image, but I got the followi...

I'm looking to run a command a given number of times in an Alpine Linux docker container which features the /bin/ash shell. In Bash, this would be bash-3.2$ for i in {1..3} > do > echo "...

To replace substring in the bash string str I use: str=${str/$pattern/$new} However, I'm presently writing a script which will be executed with ash. I have a string containing '/' and I want to...

For some reason, I can't use bash to build my script, the only way to do it is with ash, I have this sms auto responder script, each reply must be at max 160 chacters long, it looks like this: #!/...

I have a list of words in a string: str="SaaaaE SeeeeE SbbbbE SffffE SccccE" I want to reverse it in order to get "SccccE SffffE SbbbbE SeeeeE SaaaaE" How I can do that with ash?

I have this script: #!/bin/sh while [ true ] ; do urlfile=$( ls /root/wget/wget-download-link.txt | head -n 1 ) dir=$( cat /root/wget/wget-dir.txt ) if [ "$urlfile" = "" ] ; then sleep 30 con...

The ash shell in busybox doesn't seem to implement any of the standard ways to get the filename that's being sourced. For instance: testo: #!/usr/bin/env -S busybox ash echo hello whorl echo using...

How can I get /etc/profile to run automatically when starting an Alpine Docker container interactively? I have added some aliases to an aliases.sh file and placed it in /etc/profile.d, but when I s...

How does one reboot from an ash shell? I have an Ubuntu system that is currently bricked for some reason (not pertinent for this question), which means I boot into a BusyBox ash shell. But t...

I wanted to change current directory into shell script into directory, containing specific regular file. I found that following trick works in mksh and busybox sh: path=/path/to/regular/file cd $p...

I need to SSH to an embedded device, launch a background program, then disconnect and keep the background process running. The problem is that the embedded device is using the ash shell (NOT bash o...

I have the following file linux$ cat test.txt toto titi tete tata Saving the cat output into a variable will discard the newlines linux$ msgs=`cat test.txt` linux$ echo $msgs toto titi tete tat...

I am trying to create docker image with alpine linux, which after run will create container with 2 running programs. This 2 (in my opinion - I don't know docker well) can't be separated because fir...

I'm trying to use an alias in a shell script I'm writing, but it is not working. The alias: alias ts="awk '{ print strftime(\"[%Y-%m-%d %H:%M:%S]\"), \$0 }'" When I run the script, I get the fo...

I often come across $? $0 $1 $2 etc.... in shell scripting, what I know is that $? returns the exit status of the last command echo "this will return 0" echo $? but what do the others do? ...

I want to execute a shell script that require 3 arguments. The argument number 2 contains a string with space I want to put all arguments in one variable like this: Linux:~# kk="\"111\" \"222 22...

I have a program running on linux This program take its input from the stdin So I can launch it with input file in this way myprogram < file in order to avoid typing input to the program N...

The Android online documentation Android Debug Bridge says "Adb provides an ash shell". Sure enough, if I adb shell to an AVD emulator I get ash which is basically a cut-down Bourne shell. Howeve...

I want to check if a function exist or not before executing it in the shell script. Does script shell support that? and how to do it?

The new line \n is not taken account in the shell strings: str="aaa\nbbbb" echo $str Output: aaa\nbbbb Expected result: aaa bbbb How can I add a new line in the string?

this question is not the same as Does the shell support sets? i know lots of script language support list structure, such as python, python, ruby, and javascript, so what about linux shell? does ...

I know this question has already been asked but no of the solution I've found worked for me! I have a program that has an output like this: COUNT|293|1|lps I'm interested in having the second fi...